Oil A
LardAdeps suillus
NaOH 0.1390
Load 500 gHead-to-head
Lard vs Castor Oil
hard
soft
Oil B
Castor OilRicinus communis
NaOH 0.1280
Load 500 gSubstitution factor
NaOH SAP A 0.1390NaOH SAP B 0.1280A / B = 0.1390 / 0.1280
1.0859
Multiply your lye amount by 1.0859 when swapping Lard for Castor Oil.
Inverse 0.9209 when swapping Castor Oil for Lard.
500 g swap · pure NaOH
- 500 g Lard
- 69.50 g NaOH
- 500 g Castor Oil
- 64.00 g NaOH
- Lye_A = Lye_B × factor
- 64.00 × 1.0859 = 69.50
Constants
SAP, iodine, INS
| Metric | Lard | Castor Oil | Δ A−B |
|---|---|---|---|
| NaOH SAP (pure) | 0.1390 | 0.1280 | +0.0110 |
| KOH SAP (pure) | 0.1950 | 0.1800 | +0.0150 |
| KOH SAP (90%) | 0.2167 | 0.2000 | +0.0167 |
| Iodine value | 57 | 86 | -29 |
| INS | 139 | 95 | +44 |
| Max % of oils | 50% | 10% | +40 |
| Hardness class | hard | soft | — |
| Trace | slows | accelerates | — |
| INCI (pre-sap) | Adeps Suillus (Lard) | Ricinus Communis (Castor) Seed Oil | — |
| INCI NaOH salt | Sodium Lardate | Sodium Ricinoleate | — |
| INCI KOH salt | Potassium Lardate | Potassium Ricinoleate | — |
Fatty acids
Eight-acid profile
| Metric | Lard | Castor Oil | Δ A−B |
|---|---|---|---|
| Lauric C12:0 | 0.0% | 0.0% | 0.0 |
| Myristic C14:0 | 1.0% | 0.0% | +1.0 |
| Palmitic C16:0 | 26.0% | 1.0% | +25.0 |
| Stearic C18:0 | 14.0% | 1.0% | +13.0 |
| Ricinoleic C18:1-OH | 0.0% | 90.0% | -90.0 |
| Oleic C18:1 | 44.0% | 4.0% | +40.0 |
| Linoleic C18:2 | 10.0% | 4.0% | +6.0 |
| Linolenic C18:3 | 1.0% | 0.0% | +1.0 |
Quality
Physical contribution
| Metric | Lard | Castor Oil | Δ A−B |
|---|---|---|---|
| Hardness | 41.0 | 2.0 | +39.0 |
| Cleansing | 1.0 | 0.0 | +1.0 |
| Conditioning | 55.0 | 98.0 | -43.0 |
| Bubbly lather | 1.0 | 90.0 | -89.0 |
| Creamy lather | 40.0 | 92.0 | -52.0 |
| Longevity | 40.0 | 2.0 | +38.0 |